### Each Number is Significant!

Every number is significant, even small ones that seem insignificant! For example, I was talking with a parent recently who told me that if they give a dose of medicine to an animal and it is incorrectly measured by 2% then it will kill the animal. I must admit that I was quite stunned by that small difference. When I was a Junior in High School (6th form for those English and New Zealand students) my math teacher told me of a hike he did with a group. For some reason he and a friend made a slightly small deviation from the others and, after a couple of hours, discovered that they were several hundred meters apart – on opposite sides of a large ravine! Yes, small numbers or amounts do matter. Anyway, this month’s Number of the Month is 45, sourced from bestmaths.net:

**45 – Number of the Month (April 2017)**

**45**is a triangular number, and in particular the sum of all the decimal digits- (0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 =
**45**) - The factors of
**45**are 1, 3, 5, 9, 15 and**45** **45**in Roman numerals is expressed as XLV**45**is 101101 in binary.**45**is the atomic number of**Rhodium**.- There are
**45**degrees in half of a right angle. - +
**45**is the telephone dialing code for Denmark. - World War Two ended in 19
**45**.